[Issue 7690] New: std.string.join of const string array too

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7690

           Summary: std.string.join of const string array too
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: bearophile_hugs at eml.cc


--- Comment #0 from bearophile_hugs at eml.cc 2012-03-11 14:10:01 PDT ---
Is this a regression?


import std.string: join;
void main() {
    const foos = ["foo",  "bar"];
    string s = join(foos);
}


DMD 2.059head gives:

test.d(4): Error: template std.array.join(RoR,R) if (isInputRange!(RoR) &&
isInputRange!(ElementType!(RoR)) && isForwardRange!(R) &&
is(Unqual!(ElementType!(ElementType!(RoR))) == Unqual!(ElementType!(R)))) does
not match any function template declaration
test.d(4): Error: template std.array.join(RoR,R) if (isInputRange!(RoR) &&
isInputRange!(ElementType!(RoR)) && isForwardRange!(R) &&
is(Unqual!(ElementType!(ElementType!(RoR))) == Unqual!(ElementType!(R))))
cannot deduce template function from argument types
!()(const(immutable(char)[][]))

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